JP2006191589A - Optical network element with remote access capability - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To conquer a defect of access to an ONT diagnostic function in the prior art so as to promote said function. <P>SOLUTION: An optical network terminal (ONT) for a passive optical network (PON) system comprises a diagnostic interface support functions (DISF) module and a PON interface support functions (PISF) module connected to the DISF module. The PISF module is configured for receiving a remotely-issued diagnostic request transmitted for reception by the PISF module over a PON connected to the PISF module and for transmitting request reply information over the PON from the PISF module in response to the PISF module receiving the request reply information from the DISF module. The DISF module and the PISF module are jointly configured for enabling the remotely-issued diagnostic request to be communicated form the PISF module to the DISF module and for enabling the request reply information to be communicated from the DISF module to the PISF module. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The disclosure herein relates generally to passive optical network systems, and more particularly to facilitating remote access to the diagnostic functionality of optical subscriber line termination equipment.

  In a passive optical network (PON) system, the optical transmission line termination (OLT) is at the central office (CO), and the optical subscriber line termination (ONT) is at the service subscriber. These two network elements are interoperable to facilitate data transmission between the CO and the service subscriber location. The OLT and ONT each have a local diagnostic interface so that personnel (eg, technicians) have local access to diagnostic functions. The Element Management System (EMS) is connected to the OLT via the respective interface channel and allows certain diagnostic functions of the OLT and ONT to be facilitated via the EMS via the EMS. Examples of such diagnostic functions include, but are not limited to, one or more of a function related to system maintenance, a function related to system inspection, and a function related to system provision.

  If the desired ONT diagnostic functions are supported by the ONT management and control interface (OMCI), their activation can be facilitated via the OLT resident interface or remotely via the element management system. However, to access ONT diagnostic functions that are not supported by one or more of the communication channels, interfaces and / or network elements (eg, ONT Management and Control Interface (OMCI)), the local ONT diagnostic interface (ie, local craft interface) Physical connection to the interface) is required. This situation of unsupported ONT diagnostic functions means that the technician must move to the physical location where the ONT is installed to access these diagnostic functions.

  Local access to the ONT diagnostic function with ONT is expensive, potentially risky, and inefficient in logistics management. Each track roll to the service subscriber location represents a substantial expense for the telecommunications company. In addition, access to the ONT is not possible without going directly to the subscriber's home or office, which can be more expensive due to waiting time and / or return journeys.

  Therefore, an approach for facilitating access to ONT diagnostic functions in a manner that overcomes the drawbacks associated with conventional approaches for facilitating access to ONT diagnostic functions is advantageous, useful and novel. Let's go.

  The disclosure of the invention made herein enables facilitating access to ONT diagnostic functions in a manner that overcomes the shortcomings associated with conventional approaches for facilitating access to ONT diagnostic functions. Become. More specifically, the system and method embodiments according to the disclosures made herein enable ONT local access to ONT diagnostic functions (ie, proprietary diagnostic functions) that are not supported by standard ONT management and control interface protocols. As well as remotely accessible via the corresponding OLT or EMS. Thus, except perhaps in the most extreme cases (eg, when it is necessary to deal with ONT / OLT communication at the PON level), various embodiments of the systems and methods according to the present disclosure made herein are ONT. There is no need to move to a physical location. The benefits of these systems and methods that allow remote access to such non-interface assisted ONT diagnostic functions include, but are not limited to, the expense associated with track roll to service subscriber locations. This includes savings, waiting time and / or cost savings associated with returning to the service subscriber's location, and reducing the risk to the technician in situations that may occur at the service subscriber's location.

  According to one embodiment of the invention disclosure made herein, an optical subscriber line termination device (ONT) for a passive optical network (PON) system is connected to a diagnostic interface support function (DISF) module and a DISF module. PON interface support function (PISF) module. The PISF module receives a remotely issued diagnostic request sent to be received by the PISF module via a PON connected to the PISF module, and responds to the request when the PISF module receives request response information from the DISF module. The request response information is transmitted from the PISF module via the PON. The DISF module and the PISF module allow remote issued diagnostic requests to be communicated from the PISF module to the DISF module, and request response information to be communicated from the DISF module to the PISF module. It is jointly configured.

  According to another embodiment of the invention disclosure made herein, a passive optical network system includes an optical subscriber line termination device (ONT), an optical transmission path termination device (OLT), and an ONT and an OLT. And a passive optical network (PON). The ONT and OLT are jointly configured to allow remotely issued diagnostic requests to be communicated from the OLT to the ONT via the PON. The ONT and OLT are jointly configured to allow request response information to be communicated from the ONT to the OLT via the PON. The ONT and OLT each include a diagnostic interface support function (DISF) module and a PON interface support function (PISF) module. The OLT DISF module and the OLT PISF module allow remote issued diagnostic requests to be communicated from the OLT DISF module to the OLT PISF module, and the request response information is sent from the OLT PISF module to the OLT DISF module. Are jointly configured to allow them to be communicated to. ONT's DISF module and ONT's PISF module allow remote issued diagnostic requests to be communicated from ONT's PISF module to ONT's DISF module, and request response information from ONT's DISF module to ONT's PISF module Are jointly configured to allow them to be communicated to.

  According to one embodiment of the invention disclosure made herein, a method is provided for facilitating remote access to functions of an optical subscriber line termination equipment (ONT) in a passive optical network (PON) system. . The method includes facilitating transmission of an ONT diagnostic function request from the OLT to be received by the ONT via a PON connected between the ONT and an optical transmission line termination device (OLT). In response to receiving the request and recognizing that the request has been sent from the OLT, implementation of an ONT diagnostic function to determine a diagnostic result is facilitated. After the implementation of the ONT diagnostic function is promoted, transmission of request response information from the ONT to be received by the OLT is facilitated. The request response information corresponds to the diagnosis result.

  According to one embodiment of the invention disclosure made herein, a method is provided for facilitating remote access to the functionality of an optical subscriber line termination equipment (ONT) in a passive optical network (PON) system. The method includes receiving a remotely issued diagnostic request sent to be received by an ONT PISF module via a PON connected to a PON interface support function (PISF) module; and Communicating from the ONT PISF module to the diagnostic interface support function (DISF) module and communicating request response information from the DISF module to the PISF module. When the PISF module receives the request response information from the DISF module, the request response information is transmitted from the PISF module via the PON in response thereto.

  The above and other objects and embodiments of the invention disclosure made herein will become readily apparent upon further review of the following specification and related drawings.

  FIG. 1 illustrates an embodiment of a passive optical network (PON) system 100 according to an embodiment of the inventive disclosure made herein. From the viewpoint of hardware configuration, the PON system 100 is not necessarily limited thereto, but is preferably configured according to the configuration of a conventional PON system. However, from a software / methodological perspective, the PON system 100 is configured to perform ONT diagnostic functions in accordance with the invention disclosure made herein.

  The PON system 100 includes an element management system (EMS) 105, an optical transmission line termination device (OLT) 110, a PON 115, and an optical subscriber line termination device (ONT) 120. The EMS 105 is connected to the OLT 110 via an element management channel (EMC) 125, thereby enabling mutual communication. The OLT 110 is connected to the ONT 120 via the PON 115, thereby enabling communication between them.

  The EMS 105 is configured for remote management access to the OLT 110, the PON 115, and the ONT 120. The OLT 110 provides a local interface for technicians by including an OLT local craft interface 130 (eg, a TL1 interface). The OLT 110 is configured to facilitate the necessary diagnostic functions to provide PON capability, provide an interface with the EMS 105, and provide remote management access to the EMS 105, PON 115, and ONT 120. The PON 115 provides optical connectivity between the OLT 110 and the ONT 120. The ONT 120 is deployed in any one of a variety of geographical locations of the service subscriber's estate, including within a residence or corporate building. The ONT 120 includes an ONT local craft interface 135 and a telephony interface 140. The ONT local craft interface 135 provides a local interface for technicians, and the telephony interface 140 provides connectivity with service subscriber equipment.

  In accordance with the disclosures made herein, at least some of the diagnostic capabilities accessible to the ONT craft interface 135 are proprietary diagnostic capabilities and are not supported by the PON interface capabilities of the ONT 120 (ie, unsupported ONT diagnostic capabilities). In accordance with the invention disclosure made herein, ONT 120, in conjunction with EMS 105 and / or OLT 110, allows a technician to facilitate such unsupported diagnostic functions via EMS 105 and / or OLT local craft interface 130. It is configured. In order to allow access to such unsupported diagnostic functions via EMS 105, EMS 105 is configured to access OLT capabilities that enable ONT diagnostic functions in accordance with the invention disclosure made herein. Yes. In one embodiment, the EMS 105 has the ability to establish a remote session with the ONT to the technician to perform such unsupported diagnostic functions, and the hardware and / or software used by other software in the ONT. Includes a graphical user interface that provides the ability to interact directly with the processor in the ONT to access the hardware registers. As described in more detail below, OLT 110 and ONT 120 are configured to allow execution of unsupported diagnostic functions in accordance with the disclosure of the present specification.

  FIG. 2 shows an embodiment of the OLT 110. The OLT 110 includes an element management interface support function (EMISF) module 150, a core processing function (CPF) module 152, a PON interface support function (PISF) module 154, and a diagnostic interface support function (DISF) module 156. The EMISF module 150, the CPF module 152, the PISF module 145, and the DISF module 156 (that is, the functional block of the OLT 110) are interconnected so as to allow mutual interaction. The OLT 110 EMISF module 150 includes hardware and / or software that supports the element management interface 158 of the OLT 110 to enable communication of information via the EMC 125 (shown in FIG. 1). The PISF module 154 of the OLT 110 includes hardware and / or software that supports the PON interface 160 of the OLT 110 to enable communication of information via the PON 115 (shown in FIG. 1). The DISF module 156 of the OLT 110 includes hardware and / or software that supports the OLT 110 OLT local craft interface 162 to enable communication of information through a diagnostic facility operated by a technician. The CPF module 152 of the OLT 110 is hardware and / or software (eg, data) that is not directly related to support of any physical interface supported by the OLT 110 (eg, EMS interface 148, PON interface 160, and OLT local craft interface 162). Processing device power supply, hardware monitoring function, etc.).

  FIG. 3 shows an embodiment of the ONT 120 of FIG. The ONT 120 includes a PISF module 164, a core processing function (CPF) module 166, a TISF module 168, and a DISF module 170. The PISF 164, the CPF module 166, the TISF module 168, and the DISF module 170 (that is, the functional blocks of the ONT 120) are interconnected so as to allow mutual interaction. The PISF module 164 of the ONT 120 includes hardware and / or software that supports the PON interface 172 of the ONT 120 to enable communication of information via the PON 115 (shown in FIG. 1). The ONT 120 TISF module 168 includes hardware and / or software that supports the ONT 120 telephony interface 174 to enable information communication with the subscriber's equipment via an interface channel within the service subscriber's premises. ing. The DISF module 170 of the ONT 120 includes hardware and / or software that supports the ONT local craft interface 176 to enable communication of information through a diagnostic facility operated by a technician. The CPF module 166 of the ONT 120 is hardware and / or software (eg, data) that is not directly related to support of any physical interface supported by the ONT 120 (eg, PON interface 172, telephony interface 174, and ONT local craft interface 176). Processing device power supply, hardware monitoring function, etc.).

  Therefore, the OLT according to the disclosure of the present specification provides a transmission function for information, and the ONT according to the disclosure of the present specification provides a transmission function, a request interpretation function, and a request execution function. The functionality provided by the OLT and ONT according to the disclosure of the present specification allows the technician to use the ONT even if the OLT and ONT are manufactured by different companies and do not fully support each other's diagnostic functions. Can be diagnosed remotely (eg, from the OLT and / or with EMS). For example, by specifying a desired diagnostic capability request, utilizing a user-defined message that the OLT recognizes and communicates to the ONT, the OLT provides a mechanism for transmitting the message content between the technician and the ONT, thereby Allows receiving, recognizing and interpreting requested diagnostic functions of user-defined messages.

  4A-4C illustrate a method 200 for facilitating ONT diagnostic functions in accordance with the invention disclosure herein. Thus, this method 200 is not locally supported by the standard ONT management and control interface protocol (ie, proprietary diagnostic functions), but the ONT diagnostic functions are local at the ONT and preferably remotely via the PON via the corresponding OLT or EMS. Configured to allow access. Thus, except perhaps in the most extreme cases (eg, when it is necessary to deal with ONT / OLT communication at the PON level), the method 200 eliminates the need for the technician to move to the physical location of the ONT, thereby Situations that may reduce costs associated with truck rolls to service subscriber locations, reduce waiting times and / or costs associated with return trips to service subscriber locations, and may occur at service subscriber locations Reduce the risk to engineers. The PON system 100 and component network elements shown in FIGS. 1-3 are example hardware that can be configured to perform the method 200 (ie, by software and / or methodological modifications). is there. For clarity, the operation according to method 200 is described in combination with network elements that are components of PON system 100. However, those skilled in the art will appreciate that the implementation of functions explicitly performed by method 200 is not limited to implementation via PON system 100 and its constituent network elements.

  Referring to FIG. 4A, the EMISF module 150 of the OLT 110 performs an operation 202 to receive a remotely issued ONT diagnostic function request sent from the EMS 105 to be received by the OLT 110. In response to receiving the remotely issued ONT diagnostic function request, the EMISF module 150 of the OLT 110 executes an operation 204 for recognizing the remotely issued ONT diagnostic function request. Such recognition in the downstream direction (i.e., in the direction toward ONT 120) is referred to herein as a remotely issued ONT diagnostic feature request corresponds to an unsupported ONT diagnostic feature, and thus methodology according to the disclosure of the invention herein. Is disclosed as recognition that it must be interpreted, communicated, transmitted, received, and / or implemented. For example, in one embodiment, recognizing a remotely issued ONT diagnostic function request includes comparing the remotely issued ONT diagnostic function request with a collection of known requests for an unsupported ONT diagnostic function. Yes.

  In response to recognizing that a remote-issued ONT diagnostic function request is a request to implement an unsupported ONT diagnostic function, the EMISF module 150 of the OLT 110 and the DISF module 156 of the OLT 110 request a remote-issued ONT diagnostic function. Together perform an operation 206 of communicating from the ELT module 150 of the OLT 110 to the DISF module 156 of the OLT 110. When the remotely issued ONT diagnostic function request is communicated to the DISF module 156 of the OLT 110, the DISF module 156 of the OLT 110 executes an operation 208 for recognizing the remotely issued ONT diagnostic function request. In response to recognizing that the remote-issued ONT diagnostic function request is a request to implement an unsupported ONT diagnostic function, the DISF module 156 of the OLT 110 and the PISF module 154 of the OLT 110 respond to the remote-issued ONT diagnostic function request. Are jointly performed 210 to communicate from the DISF module 156 of the OLT 110 to the PISF module 154 of the OLT 110. When a remotely issued ONT diagnostic function request is communicated to the PISF module 154 of the OLT 110, the PISF module 154 of the OLT 110 executes an operation 210 for recognizing the remotely issued ONT diagnostic function request. In response to recognizing a remotely issued ONT diagnostic function request as a request to implement an unsupported ONT diagnostic function, the PISF module 154 receives the ONT diagnostic function via the PON 115 and is received by the ONT 120. Perform operation 214 to send a request from OLT 110. In one embodiment, the step of sending the remotely issued ONT diagnostic function request preferably generates one or more command packets configured to transmit via the PON 115 corresponding to the requested ONT diagnostic function. Includes steps to do.

  Referring to FIG. 4B, the PISF module 164 of the ONT 120 performs an operation 216 for receiving a remotely issued ONT diagnostic function request sent from the OLT 110 to be received by the ONT 120. In response to receiving the remotely issued ONT diagnostic function request, the PISF module 164 of the ONT 120 executes an operation 218 for recognizing the remotely issued ONT diagnostic function request. In response to recognizing that a remote-issued ONT diagnostic function request is a request to implement an unsupported ONT diagnostic function, the ONT 120 PISF module 164 and the ONT 120 DISF module 170 respond to the remote-issued ONT diagnostic function request. Together perform operation 220 for communicating from the PISF module 164 of the ONT 120 to the DISF module 170 of the ONT 120. When the remotely issued ONT diagnostic function request is communicated to the DISF module 170 of the ONT 120, the DISF module 170 of the ONT 120 executes an operation 222 for recognizing the remotely issued ONT diagnostic function request.

  In response to recognizing that a remotely issued ONT diagnostic function request is a request to implement an unsupported ONT diagnostic function, the DISF module 170 of the ONT 120 responds to a specific detail regarding the requested ONT diagnostic function (eg, which ONT diagnostics). To determine whether the function is requested, under what conditions the requested ONT diagnostic function is executed, etc., the operation 224 is performed to interpret the remotely issued ONT diagnostic function request, after which the determined An operation 226 is issued that issues an ONT diagnostic function request (ie, a locally issued ONT diagnostic function request) corresponding to a particular item. Locally issued ONT diagnostic function requests are issued by the DISF module 170 to be received by the ONT 120 PISF module 164, the ONT 120 CPF module 166 and / or the ONT 120 TISF module 168 and interpreted by the above modules of the ONT 120. Can do.

  After issuing a locally issued ONT diagnostic function request, and after the ONT 120 module (164-170) operates based on the locally issued ONT diagnostic function request, the DISF module 170 sends the diagnostic response information to the PISF module 164 of the ONT 120, Perform operations 228 received from the CPF module 166 of the ONT 120 and / or the TISF module 168 of the ONT 120. The diagnostic response information corresponds to the diagnostic result of the requested ONT diagnostic function (i.e., information resulting from the facilitated requested ONT diagnostic function). In response to receiving the diagnostic response information, the DISF module 170 performs an operation 230 that creates request response information that includes at least a portion of the diagnostic response information. In response to the creation of the request response information, the PISF module 164 and the DISF module 170 jointly perform an operation 232 that communicates the request response information from the DISF module 170 of the ONT 120 to the PISF module 164 of the ONT 120.

  In response to the request response information being communicated to the PISF module 164 of the ONT 120, the PISF module 164 of the ONT 120 performs an operation 234 that recognizes the request response information. Such recognition in the upstream direction (i.e., toward EMS 105) is herein referred to as request response information corresponding to an unsupported ONT diagnostic function, and thus is interpreted, communicated, transmitted by the disclosure of the invention herein. And / or is disclosed as recognition that must be received. For example, in one embodiment, the step of recognizing request response information includes specific identification information that specifies that the request response information is information related to a request to implement an unsupported ONT diagnostic function. The step of determining whether or not. In response to recognizing that the request response information is information related to a request for implementing an unsupported ONT diagnostic function, the PISF module 164 of the ONT 120 receives the request response information to be received by the OLT 110 via the PON 115. Is transmitted from the ONT 110. In one embodiment, the request response information sending step preferably includes generating one or more command packets corresponding to the request response information and configured to be sent via the PON 115. .

  Referring to FIG. 4C, the PISF module 154 of the OLT 110 performs an operation 238 for receiving request response information transmitted from the OLT 110 to be received by the ONT 120. In response to receiving the request response information, the PISF module 154 of the OLT 110 performs an operation 240 for recognizing a remotely issued ONT diagnostic function request. In response to recognizing that the request response information is information related to a request for implementing the non-support type ONT diagnosis function, the PISF module 154 of the OLT 110 and the DISF module 156 of the OLT 110 send the request response information to the PISF of the OLT 110. The operation 242 for communicating from the module 144 to the DISF module 156 of the OLT 110 is performed jointly.

  In response to the request response information being communicated to the DISF module 156 of the OLT 110, the DISF module 156 of the OLT 110 performs an operation 244 for recognizing the request response information. In response to recognizing that the request response information is information related to a request for implementing an unsupported ONT diagnostic function, the DISF module 156 of the OLT 110 and the EMIS module 150 of the OLT 110 jointly send the request response information to the OLT 110. An operation 246 is performed that communicates from the DISF module 156 to the EMISF module 150 of the OLT 110. In response to the request response information being communicated to the OLT 110 EMISF module 150, the OLT 110 EMISF module 150 performs an operation 248 of recognizing the request response information, after which the OLT 110 EMISF module 150 is received by the EMS 105. Thus, the operation 250 for transmitting the request response information for the OLT 110 is executed.

  Alternatively, the remotely issued ONT diagnostic function request may not be provided from the EMS 105 but may be provided by the technician at the OLT local craft interface 162. Similarly, the request response information may be accessed by the technician via the OLT local craft interface 162 rather than in the EMS 105.

  In view of the method 200, a mechanism is provided that allows a technician to access the diagnostic capabilities of the local craft interface 135 of the ONT 120 (ie, the diagnostic interface of the ONT 120) without being at the physical location of the ONT 120. Thereby, it is not necessary to move to the physical location of the ONT 120 to perform diagnostic tests that would otherwise require a physical connection to the ONT 120. Implementing such remote access to the diagnostic capabilities of the ONT local craft interface, as shown in method 200, requires many different alternatives and / or additions of the capabilities of the ONT and associated OLT. And These alternatives and / or additions include, but are not limited to, information exchanged between the OLT and the ONT via the PON (eg, data) from an ONT diagnostic request from a remote technician. Adding the ability to integrate into the OLT, extending the ability to transfer diagnostic interaction between the remote technician and the OLT to the protocol used by the PON, and making the diagnostic interaction a remote technology To extend the ability to transfer between the user and the ONT to the protocol used by the PON, the request for diagnostic action by the remote engineer as issued by the local craft interface of the ONT Extends the functionality of various OLT and ONT modules so that they can be processed by It includes that step.

  Extension of the ONT / OLT interface may include extending the OMCI protocol used in physical layer OAM (PLOAM) and / or BPON (broadband PON) systems. In the case of GPON (Gigabit PON) and EPON (PON using Ethernet), it will be necessary to expand the corresponding protocol components. Extending the PLOAM level of the interface protocol (or the corresponding lowest level in a GPON or EPON system) minimizes the dependency on high-level functions, so the diagnostic value of the invention disclosure made herein is the highest. It will be. Corresponding protocol extensions within OMCI or GPON and EPON systems are also possible and in some cases will provide similar levels of diagnostic capabilities.

  PLOAM is a second layer protocol for exchanging management information packets between the OLT and the ONT. OMCI is a management channel protocol. Implementation of the method and system according to the disclosure herein includes an extension of the PLOAM transport mechanism to support the exchange of messages between the OLT and ONT processors, or a user of OMCI to transfer this same information Includes any use of defined message capabilities. The use of PLOAM is preferred because this strategy minimizes the amount of software between the remote technician and the ONT processing device (s). However, the use of PLOAM involves an extension of the relevant interface protocol. The use of user-defined messages in OMCI reduces the impact of standardization, but will be less robust because more protocol software is included between the processors between OLT and ONT. Regardless of which approach is selected, the resulting mechanism must be able to exchange message packets between the ONT and the OLT, including manufacturer specific (eg, proprietary) commands and corresponding response data.

  Referring now to computer readable media, the method, steps and / or operations configured to perform the ONT diagnostic functions disclosed herein in accordance with the disclosure of the present specification are such functions. It will be appreciated that the invention is explicitly implemented by a computer-readable medium that contains instructions for executing In one particular embodiment, disclosed in FIGS. 3A-3C above to facilitate a required ONT diagnostic function (ie, non-assisted ONT diagnostic function) that is proprietary and not supported by ONT's PON interface capabilities. The instructions are explicitly implemented to perform method 200. This instruction may be from a memory device (eg, RAM, ROM, virtual memory, hard drive memory, etc.), from a device (eg, diskette, compact disk, tape cartridge, etc.) readable by the drive unit of the data processing system, or one from both It may be accessible by multiple data processing devices. Accordingly, an embodiment of a computer readable medium according to the disclosure of the present specification incorporates an imaged computer program (ie, a set of instructions) adapted to perform ONT diagnostic functions according to the disclosure of the present specification. Including compact disks, hard drives, RAM or other types of storage devices.

  In the foregoing detailed description, reference has been made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments and several variations thereof have been described in sufficient detail to enable those skilled in the art to practice the invention. Further, it will be understood that other suitable embodiments may be utilized and logical, mechanical and electrical changes may be made without departing from the spirit or scope of the invention. For example, the functional blocks shown in the figures could be further combined or divided in any manner without departing from the spirit or scope of the present invention. To avoid unnecessary detail, the description omits certain information known to those skilled in the art. Accordingly, the detailed description thus far is not intended to be limited to the specific forms described herein, but rather to the contrary within the spirit and scope of the appended claims. It is intended to cover the above alternatives, modifications and equivalents that may be included.

1 is a diagram illustrating an embodiment of a passive optical network system according to an embodiment of the disclosure of the present specification. 2 is a diagram illustrating an embodiment of the optical transmission line termination device illustrated in FIG. 1. It is drawing which shows embodiment of the optical subscriber line termination | terminus apparatus of FIG. 3 is a diagram illustrating a method for facilitating a diagnostic function of an optical subscriber line termination device according to an embodiment of the disclosure of the present specification; 3 is a diagram illustrating a method for facilitating a diagnostic function of an optical subscriber line termination device according to an embodiment of the disclosure of the present specification; 3 is a diagram illustrating a method for facilitating a diagnostic function of an optical subscriber line termination device according to an embodiment of the disclosure of the present specification;

Explanation of symbols

100 Passive Optical Network (PON) System 105 Element Management System (EMS)
110 Optical transmission line termination equipment (OLT)
115 Optical Passive Network 120 Optical Subscriber Line Termination Equipment (ONT)
130, 162 OLT Local Craft Interface 135, 176 ONT Local Craft Interface 140, 174 Telephony Interface 150 Element Management Interface Support Function (EMISF) Module 152 Core Processing Function (CPF) Module 154 PON Interface Support Function (PISF) Module 156 Diagnostic Interface Support Function (DISF) module 158 Element management interface 160, 172 PON interface 164 PISF module 166 CPF module 168 TISF module 170 DISF module

Claims (10)

An optical subscriber line termination device (ONT) for a passive optical network (PON) system,
A diagnostic interface support function (DISF) module;
A PON interface support function (PISF) module connected to the DISF module;
The PISF module receives a remotely issued diagnostic request sent to be received by the PISF module via a PON connected to the PISF module, and responds to the request when the PISF module receives request response information from the DISF module. And configured to transmit the request response information from the PISF module via the PON, and
The DISF module and the PISF module allow a remotely issued diagnostic request to be communicated from the PISF module to the DISF module, and allow the request response information to be communicated from the DISF module to the PISF module. An optical subscriber line termination device that is jointly configured. A core processing function (CPF) module;
A telephony interface support function (TISF) module;
In response to the remote issued diagnostic request received by the DISF module, the module sends a locally issued diagnostic request corresponding to the remotely issued diagnostic request from the DISF module to at least one of the CPF module, the PISF module, and the TISF module. 2. The optical subscriber line termination apparatus of claim 1 configured jointly to allow communication with said optical subscriber line termination apparatus. The module is configured to enable an ONT diagnostic function corresponding to a remotely issued diagnostic function request to be promoted and to generate diagnostic response information in response to the ONT diagnostic function promotion;
The ONT diagnostic function is facilitated in response to a locally issued diagnostic request being communicated from a DISF module to at least one of a CPF module, a PISF module, and a TISF module;
The modules are jointly configured to allow the diagnostic response information to be communicated from at least one of a CPF module, a PISF module, and a TISF module to a DISF module;
3. The optical subscriber line terminating apparatus according to claim 2, wherein the request response information corresponds to a diagnosis result constituted by the diagnosis response information. The PISF module recognizes the remote-issued diagnostic request as being remotely issued, and when the PISF module recognizes the remote-issued diagnostic request, communicates the remote-issued diagnostic request from the PISF module to the DISF module. Composed of
The DISF module is configured to recognize the remotely issued diagnostic request as being remotely issued, and to facilitate the ONT function in response to the remotely issued diagnostic request after the DISF module recognizes the remotely issued diagnostic request. The optical subscriber line terminating device according to claim 1. A core processing function (CPF) module;
A telephony interface support function (TISF) module;
In response to receiving and recognizing a remotely issued diagnostic request, the module responds to a locally issued diagnostic request from the DISF module to at least one of the CPF module, PISF module and TISF module. 5. The optical subscriber line termination device of claim 4, wherein the optical subscriber line termination devices are jointly configured to be able to communicate with each other. The module is configured to enable an ONT diagnostic function corresponding to a remotely issued diagnostic function request to be promoted and to generate diagnostic response information in response to the ONT diagnostic function promotion;
The ONT diagnostic function is facilitated in response to a locally issued diagnostic request being communicated from a DISF module to at least one of a CPF module, a PISF module, and a TISF module;
The modules are jointly configured to allow the diagnostic response information to be communicated from at least one of a CPF module, a PISF module, and a TISF module to a DISF module;
6. The optical subscriber line terminating apparatus according to claim 5, wherein the request response information corresponds to a diagnosis result constituted by the diagnosis response information. A method for facilitating remote access of an optical subscriber line termination (ONT) function in a passive optical network (PON) system comprising:
Receiving a remotely issued diagnostic request sent to be received by the ONT PISF module via a PON connected to a PON interface support function (PISF) module;
Communicating a remotely issued diagnostic request from the ONT PISF module to a diagnostic interface support function (DISF) module;
Communicating request response information from the DISF module to the PISF module;
Receiving a request response information from the DISF module when the PISF module receives the request response information from the PISF module in response thereto.   When the DISF module receives a remote-issued diagnostic request, the local-issued diagnostic request corresponding to the remote-issued diagnostic request is sent from the DISF module to the ONT Core Processing Function (CPF) module, the ONT PISF module, and the telephony interface. The method of claim 7, further comprising communicating to at least one of a support function (TISF) module. Responsive to a locally issued diagnostic request being communicated from the DISF module to at least one of the CPF module, PISF module, and TISF module, facilitating an ONT diagnostic function corresponding to the remotely issued diagnostic request;
Generating diagnostic response information in response to promoting the ONT diagnostic function;
Communicating the diagnostic response information from at least one of a CPF module, a PISF module, and a TISF module to a DISF module;
The method according to claim 8, wherein the request response information corresponds to a diagnosis result configured from the diagnosis response information. Recognizing remotely issued diagnostic requests as remotely issued;
Communicating the remotely issued diagnostic request from the PISF module to the DISF module in response to the PISF module recognizing the remotely issued diagnostic request;
After the DISF module recognizes the remotely issued diagnostic request, accelerating the ONT diagnostic function in response to the remotely issued diagnostic request;
Communicating the diagnostic request information from at least one of a CPF module, a PISF module, and a TISF module to the DISF module, wherein the request response information corresponds to a diagnostic result constituted by the diagnostic response information. The method of claim 7.

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